丹酚酸B-黄连素复合物对糖尿病小鼠肾损伤及SIRT1/PGC-1α信号通路的影响Effect of Salvianolic Acid B-Berberine Compound on Renal Injury and SIRT1/PGC-1α Signaling Pathway in Diabetic Mice
胡媛媛;暴雪丽;武彦香;连娟;祝嘉健;郑春燕;胡雪红;姜广建;
摘要(Abstract):
目的 通过观察沉默信息调节因子2相关酶1(SIRT1)/过氧化物酶体增殖物激活受体γ共激活因子1α(PGC-1α)的表达,探讨丹酚酸B和黄连素的复合物对糖尿病小鼠肾损伤的影响。方法 雄性C57BL/6J小鼠经高脂饮食诱导2型糖尿病,将糖尿病小鼠随机分为模型组、丹酚酸B+黄连素组、黄连素组、丹酚酸B组。黄连素、丹酚酸B及其复合物灌胃8周后,观察各组小鼠肾脏组织病理学改变;比较各组小鼠血清肌酐(Scr)、血清尿素(Urea)、空腹血糖水平(FBG)的变化,以及各组小鼠肾脏组织SIRT1、PGC-1α的蛋白表达。结果 与正常组小鼠相比,模型组肾脏病理可见肾小球肥大,系膜区增宽增厚等。丹酚酸B、黄连素及其复合物均可减轻糖尿病引起的肾脏微结构的改变,其中丹酚酸B和黄连素的复合物效果最为显著。不同药物治疗后,丹酚酸B+黄连素组Scr、Urea水平显着降低(P<0.05);丹酚酸B+黄连素组、黄连素组及丹酚酸B组肾脏组织SIRT1/PGC-1α的蛋白表达均有所上升(P <0.05),其中丹酚酸B+黄连素组效果最为显著。结论 丹酚酸B和黄连素的复合物可显著改善糖尿病小鼠的肾损伤,该作用与其调控SIRT1/PGC-1α的表达有关,进而发挥对糖尿病肾病的防治作用。
关键词(KeyWords): 糖尿病;糖尿病肾病;肾损伤;丹酚酸B;黄连素;小鼠
基金项目(Foundation): 国家自然科学基金项目(81774171)
作者(Authors): 胡媛媛;暴雪丽;武彦香;连娟;祝嘉健;郑春燕;胡雪红;姜广建;
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